JPH0560380A - Main stop type hot water supplying apparatus - Google Patents

Abstract

PURPOSE:To enhance operability by using heating instructing means not only as a hot water supply cock but also as a water cock by switching ON/OFF the means. CONSTITUTION:A main stop type hot water supplying apparatus comprises a water heating heat exchanger 1, heating means 2 for heating in the exchanger 1, a water supply passage W1 for connecting a water supply port 12 to a hot water supply tube connecting port 13 through the exchanger 1, a solenoid switching valve 5 for opening or closing the passage W1, and control means 100 for controlling the operations of the means 2 and the valve 5 in a body case A. Further, a hot water supply tube 3 is connected to the port 13. Heating instructing means S3 for instructing ON/OFF of the heating operation of the means 2 is provided, and when the means S3 instructs OFF, the means 100 stops the heating of the means 2. Accordingly, it can also be used as a water cock.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a heat exchanger for heating water, a heating means for heating the heat exchanger, a water supply port and a hot water supply pipe connection port via the heat exchanger. A water supply passage communicating with the water supply passage, an electromagnetic on-off valve for opening and closing the water supply passage, and a control means for controlling the operation of the heating means and the on-off valve are provided in a main body case, and a hot water supply pipe is connected to the hot water supply pipe connection. The present invention relates to a hot water heater of a main stop type, which is connected to a mouth and is provided with hot water supply instructing means for instructing the control means to a hot water supply state and a hot water supply stop state at a tip portion of the hot water supply pipe.

[0002]

2. Description of the Related Art In the hot water heater of the above type, the user can switch between the hot water supply state and the hot water supply stop state. Therefore, it can be used as a hot water tap having excellent operability. By the way, conventionally, in the hot water heater of the above-mentioned stop type, it was not possible to stop the heating operation of the heating means in the hot water supply state.

[0003]

In the above prior art, the water heater cannot be used as a mere faucet.
An object of the present invention is to eliminate the above-mentioned conventional drawbacks, and to obtain a hot water heater of an original stop type which has excellent operability and can be used not only as a hot water tap but also as a water tap.

[0004]

In order to achieve this object, the characteristic configuration of the hot water heater of the original stop type according to the present invention is provided with heating instructing means for instructing on / off of the heating operation of the heating means. The control means is configured to stop the heating operation of the heating means when the heating instructing means instructs to turn off.

[0005]

When the heating instructing means gives an instruction to turn off, the hot water instructing means can be used as a faucet by switching between the hot water supplying state and the hot water supply stop state. On the other hand, when it is used as a hot water supply tap, the heating instruction means may be used as an input.

[0006]

By turning on and off the heating instructing means, it can be used not only as a hot water tap but also as a water tap, so that it is possible to obtain a main-stop type hot water heater having excellent operability.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 4, a heat exchanger 1 for heating water and a burner 2 as a heating means for heating the heat exchanger 1 are provided in a main body case A.
And the flexible pipe 3 having the water outlet 4 at its tip
Are connected to the hot water supply pipe connection port 13 to form a hot water supply device. The flexible pipe 3 has a hot water supply pipe connection port 13
With respect to the vertical axis, it is attached so as to be rotatable about its axis.

Further, in the water supply passage W1 which connects the water supply inlet 12 and the flexible pipe 3 via the heat exchanger 1, an electromagnetic on-off valve 5 for opening and closing the water supply passage W1, a water governor 6, and heat exchange. Flow dividing valve 7 for adjusting the amount of water supplied to the vessel 1 and the amount of bypass water
Is installed. In the fuel supply path G1 to the burner 2,
An electromagnetic shutoff valve 8, a water pressure responsive valve 9 interlocking with the water governor 6, a gas governor 10, and a control valve 11 for adjusting the fuel supply amount are interposed.

Push switches S1 and S2 are provided on the body case A and the water outlet 4, respectively. A hot water temperature adjusting dial 15 is arranged on the outer peripheral portion of the push switch S1 on the main body case A side. The hot water temperature adjustment dial 15
The diversion valve 7 and the control valve 11 are interlocked. In the figure, S3 is a limit switch that is turned on when the hot water temperature adjustment dial 15 is operated to the water operation position.
In the figure, 14 is a water flow switch, 16 is a spark plug, 1
7 is a thermocouple, 18 is a back electromotive thermocouple for preventing incomplete combustion, 1
Reference numeral 9 is a seesaw button for selecting a shower hot water state or straight, a lamp 20 and a battery 21.

Next, a configuration for controlling the operation of the burner 2 and the opening / closing valve 5 will be described. As shown in FIG. 1, a controller C using a microcomputer is provided, and push switches S1 and S2, a limit switch S3, a water flow switch 14 and the like are connected to the controller C. Then, the controller C controls the opening and closing of the on-off valve 5 and the shutoff valve 8 and the operation of the ignition plug 16 based on the information of the switches and the like. That is, when one of the push switches S1 and S2 is turned on while the burner 2 is in the hot water supply stop state, the on-off valve 5 is opened and the hot water supply state is entered. Here, the limit switch S3 is O
If it is FF (corresponding to when the hot water temperature adjusting dial 15 is not at the water operation position), the burner 2 is heated. On the other hand, limit switch S3 is ON (hot water temperature adjustment dial 1
5 corresponds to when the operating position is for water), the heating operation of the burner 2 is stopped. That is, the hot water discharge state and the water discharge state are switched based on the information of the limit switch S3. When any of the push switches S1 and S2 is turned on while the burner 2 is in the hot water supply state, the on-off valve 5 and the shutoff valve 8 are closed and the hot water supply stop state is entered. That is, the push switches S1 and S2 correspond to hot water supply instructing means for instructing a hot water supply state and a hot water supply stop state, and the limit switch S3 corresponds to a heating instructing means for instructing on / off of the heating operation of the burner 2, and the controller C is used. The control means 100 is then configured.

Next, the operation of the controller C will be described with reference to the flowcharts of FIGS. First, the flag F is checked. If flag F is set,
The on-off valve 5 is opened to bring it into a hot water supply state. Then, the limit switch S3 is checked.
If it is ON, it is in a water-out state. On the other hand, if the flag F is reset, the hot water supply is stopped. By the way,
As shown in, one of the push switches S1, S2
An interrupt is generated every time the switch is turned on, and the flag F is inverted.

[Other Embodiments] In the above embodiment, the case where the heating instructing means S3 is provided on the main body case A side is shown, but it may be provided at the tip of the hot water supply pipe 3. Further, the heating instruction means S3 may be a manually operated switch.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a block diagram of the overall configuration

FIG. 2 is a flowchart of control operation.

FIG. 3 is a flowchart of control operation.

[Figure 4] External view of the water heater

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat exchanger 2 Heating means 3 Hot water supply pipe 5 On-off valve 12 Water supply port 13 Hot water supply pipe connection port 100 Control means A Main body case S1, S2 Hot water supply instruction means S3 Heating instruction means W1 Water supply channel

Claims (1)

[Claims] 1. A heat exchanger (1) for heating water, a heating means (2) for heating the heat exchanger (1), and a water supply port () through the heat exchanger (1). 12) and the hot water supply pipe connection port (13), a water supply passage (W1), an electromagnetic on-off valve (5) for opening and closing the water supply passage (W1), the heating means (2) and the on-off valve A control means (100) for controlling the operation of (5) is provided in the main body case (A), a hot water supply pipe (3) is connected to the hot water supply pipe connection port (13), and the hot water supply pipe (3) is provided. Hot water supply instruction means (S) for instructing the control means (100) to the hot water supply state and the hot water supply stop state at the tip of
A hot water heater of the original stop type provided with 2), wherein heating instruction means (S3) for instructing on / off of heating operation of the heating means (2) is provided, and the control means (100).
Is a main-stop type water heater configured to stop the heating operation of the heating means (2) when the cutting instruction is given by the heating instruction means (S3).